The rifles produced by Waffen Werke Brunn were coded dot from 1942- 1945.
While the following guns recievers are dated 1944, serious consideration must
be made that the late 5 digit serial number guns were actually manufactured in
1945. This is done based on evidence- some late 5 digit guns produced bear many
manufacturing shortcuts introduced by Mauser in 1945- one key in my opinion
is the triggerguard with no locking screws- those produced by Mauser and marked
byf show up on Mauser rifles produced in December of 1944- they also start
showing up on dot1944 marked rifles around the introduction of the later 5 digit
serial number. Also, phosphate finished parts show up on these rifles. Based on serial studies, it has been forwarded that 1945 production started at or around serial 80-85000. Other 5 digit guns with a suffixes are all 1945 date production. Dot 44 production rolled over from 1943 production at suffix w.

Most
items below are based on study of matching original guns- variations to exist
from this guide however.

Serial Range: (in order of production) 0001w to 9999z ;
0001 aa to 9999 az;
10000 to 99999; 0001a
to 45300aMetal Finish: Blued, some phosphate bolts on late (after about serial 95000) Stock Finish: Most unstained, rough, Eagle H marked with corncobbed finishStock Type:Semi Kriegsmodell late- has takedown washer, bayonet lug deleted,
screwed in bands- early guns with standard configuration stocks,
i.e. with takedown washer, bayonet mount, and band spring arrangement, "dot" marked commonWood Type: some solid, most laminated Triggergaurd: qnw, byf no locking screw type most often encountered on late guns-
many variations may existFloorplate: stamped or milled, byf marked, blued or phosphate, some milled
with subcontractor markings such as "1", LU, qnwFollower: lxr, 135 proofed, or unmarked, blued or phosphatedFront and Rear Bands: Bands were blued, or will be
phosphate finished (late), no waffenamts or serial, held by screws (no band
spring)- early guns have band springsNumbered Parts:
Full serial number w/suffix on left receiver or barrel, last 4 digits with suffix on
bolt root, last 4 digits on bolt shroud, last 2 digits on cocking piece, Safety
unnumbered on late 5 digit serials